Search for tetraquark candidate Z(4430) in meson photoproduction

TL;DR

This paper proposes a method to detect the Z(4430) tetraquark candidate in meson photoproduction experiments, leveraging its strong coupling to certain decay channels to distinguish it from background noise.

Contribution

It introduces a novel experimental approach to search for Z(4430) in photoproduction, based on its predicted large coupling to specific decay modes.

Findings

Z(4430) could be identified via its decay to ψ′π in photoproduction

The cross section depends on the quantum numbers J^P of Z(4430)

The proposed method enhances detection prospects of tetraquark states

Abstract

We propose a search for the newly discovered tetraquark candidate Z(4430) in photoproduction. Based on the Belle results we show that if Z(4430) is a genuine resonance, its significantly large coupling to $\psi^\prime\pi$ will cause it to stand out above the background in $\gamma p\to Z^+(4430) n\to \psi^\prime \pi^+ n$. We consider the dependence of the cross section for the quantum numbers ($J^{P}=1^{-}$, $1^{+}$ or $0^{-}$).